Wrench.



c. KBRR. WRENCH.

APPLICATION FILED 00T. 18, 1910.

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CLIFFORD KERR, OF AURORA, INDIANA.

WRENCH.

Specification of Letters Patent.

Patented May 30, 1911.

Application filed October 18, 1910. Serial No. 587,694.

To all 'whom it may concern:

Be it known that I, CLIFFORD Keim, a citizen of the United States,residing at Aurora, in the county of Dearborn and State of Indiana, haveinvented new and useful Improvements in l/Vrenches, of which thefollowing is a specification.

This invention relates to improvements in wrenches and more particularlyto the type wherein the gripping portion is actuated to turn in oppositedirections by a pawl and ratchet mechanism.

One object of the invention is the provision of a Wrench of theabove-stated type having a circular head and a ratchet member rotatablymounted in said head and provided with a stationary and movable jaw,thevparts being so positioned with relation to each other that the toolwill occupy a minimum of space in engagement with objects located incomparatively small or irregular shaped places and actuated to turn in acomparatively easy manner.

With these and other objects in view, which will more fully hereinafterappear', thevpresent invention consists in certain novel details ofconstruction andarrangement of parts, hereinafter fully described,illustrated in the accompanying drawings, and more particularly pointedout in the appended claims; it being understood that various changes inthe form, proportion, size, and minor details of the device may be made,within the scope of the appended claims,l without departing from thespirit or sacrificing any of the advantages of the invention.

In the accompanying drawings, forming part of the specification;-Figu1'e1 is a front elevation of the device partly in section and disclosingthe pawls and a portion of the ratchet ring. Fig. 2 is a section takenapproximately on the line 2-2 of Fig. 1 and looking in the direction ofthe arrow. Fig. 3 is a transverse section taken approximately on theline 3-8 of Fig. 1 and looking in the direction of the arrow. Fig. 4 isa frag mentary plan view of the ratchet wheel.

Similar numerals of reference are employed to designate correspondingparts throughout.

The device includes a handle designated by the numeral 5, the saidhandle being provided at one end with an annular-shaped head made up oftwo sections and designated by the numerals 6 and 7. The section 7 ispreferably formed integral with thc handle 5, its medial portion bearingon the inner end of the handle and its opposite end portions rabbetedand provided with threaded openings. The section (5 has its opposite endportions undercut, said undercut portions being received by the rabbetsin the opposite end portions of the section 7 and having openings toaline with the openings in the rabbeted portions of the section 7, theseopenings receiving screws or other suitable fastening means as shown atS.V

That portion of the section 7 bearing on the handle 5 is provided with arecess extending well into the inner end portion of the handle andextending to the opposite sides of the recess and located at the medialportion of the section 7 is a pivot pin f). Pawl members are designatedby the numerals 10 and 11, the said pawl members l1aving openingsadjacent to one end for the loose reception of the pivot pin 9, the saidpawl members extending in opposite directions through the recess in thesection 7. The pawl members are medially provided on their outer sideswith pins 11 and 15, the said pins extending through slots 1G formed inthe opposite sides and adjacent to the inner end portion of the handle.The outer ends of the pins are provided with heads 17, the heads 17being greater in diameter than the width of the slots 1G so as to limitthe inward movement of the pins. Surrounding the pins 14 and 15 arehelical coinpression springs 18, the opposite terminals of which bear onthe outer sides of the pawl and inner end portion of the handle 5, the'function of these springs being to yieldingly hold the free endportions of the pawls adjacent to the inner end of the recess.

An annular-shaped ratchet member is designated by the numeral 19, and ismedially provided with a cross bar 20. The outer periphery of theratchet member is provided with a plurality of spaced teeth 20 and 21,formed by a plurality of V-shaped notches arranged in pairs spaced fromVeach other, the notches of each pair being oblique to each other. Theinner peripheries of the sections 6 and 7 of the head are channeled toreceive the ratchet ring 19, the free ends of the pawls 10 and 11engaging with the teeth 2O and 21.

Formed integral with one face of the cross bar 20 is what willsubsequently be termed a stationary jaw member 22extending'perpendicular to the cross bar 20 and located at one endportion of the latter. The side portions of the cross bar 20 ex-'tending beyond the stationary jaw member 22 are beveled.

A sliding jaw member is designated by the numeral 23, and at one end isprovided with a recess to receive the cross bar 20, the opposite sidesof said recess being beveled to conform to the beveled sides of thecross bar 20.

A screw is designated by the numeral 24 and has one end fixed to theinner surface of the inner jaw member 22 and adjacent to the inner endof the latter, the` opposite end of said screw extending through anopening in the inner end portion of the sliding jaw member 23. Formed inthe inner end portion of the sliding jaw member 23 is a recess formed atright angles to the recess for the reception of the cross bar 20', theopposite ends of said recess opening through the opposite sides -of thesliding jaw member 23. Arranged in this recess with portions of itsperiphery extending beyond the opposite ends thereof is an adjusting nut25, screwed onto the screw 24:. With this construction it will bemanifest by turning the adjusting nut the sliding jaw member 23 willmove under the cross bar 20.

Fromthe foregoing, it is evident that I have provided a device which iscomparatively simple in structure and inexpensive to manufacture,embodying few parts and these so arranged that the danger of derangementwill be reduced to a minimum.

I claim l. A ratchet tool comprising a handle member provided at one endwith an annular head, the inner circumference of which is channeled andprovided with a recess, spring-actuated pawl member arranged in therecess and extending into the channel, an annular ratchet memberarranged in the channel and having peripheral teeth to engage saidpawls, a cross bar extending medially to said annular ratchet member, astationary jaw member extending laterally from the cross bar, a slidingjaw member arranged on the cross bar', and adjusting de,- vicesassociated with the said jaw members, for the purpose described.

2. A ratchet tool comprising a handle member provided at one end with anannular head, the inner circumference of which is channeled and providedwith a recess, spring-actuated pawl members arranged in the 'recess andextending into the channel, an annular ratchet member arranged in thechannel and having peripheral teeth to engage said pawls, and a mediallyextending cross bar, a stationaryjaw member extending laterally from oneend portion of the cross bar, a second jaw member slidingly iitted onthe cross bar, and adjusting devices connected with said jaw members,for the purpose described.

3. A ratchet tool comprising a handle member provided at one end with anannular head composed of semi-circular sections, means for connectingthe said sections tolgether, the inner circumference of said head beingchanneled and provided with a recess, a pair of oppositely arrangedspring actuated pawl members positioned in the recess and extending intothe channel, an annular ratchet member arranged in the channel andhaving peripheral teeth to engage with said pawls, and a cross barextending medially of said rigid member, a stationary jaw memberextending at right angles from one end portion of the cross bar, asecond jaw member slidably mounted upon the cross bar, a threaded shankconnected to thelower end of the stationary jaw member and extendingthrough the movable jaw member, said movable jaw member being providedwith a recess in which is arranged a nut adapted to engage the threadedshank, whereby vthe movable jaw member may be adjusted with respect tothe stationary jaw member.

In testimony whereof I afiix my signature in presence of two witnesses.

CLIFFORD KERR.

Witnesses PHILIP O. KERRIGAN, AUGUST MEYER.

Copies of this patent may be obtained for ve cents each, by addressingthe Commissioner of Patents, Washington, D. C.

